Two transistor switch

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Details

357 20, 357 51, H01L 2706

Patent

active

043171281

ABSTRACT:
A Darlington transistor switch with a first and a second transistor, in which the base electrode of the first transistor is connected to the emitter electrode of the second transistor. In order to increase the switching speed of the device, the base-emitter capacitance of the second transistor relative to the base-emitter capacitance of the first transistor is increased so that voltage variations on the base of the second transistor with respect to the emitter of the first transistor are uniformly distributed over the base-emitter junctions of the two transistors.

REFERENCES:
patent: 2663830 (1953-12-01), Oliver
patent: 3836995 (1974-09-01), Wheatley et al.
patent: 4001867 (1977-01-01), Kravitz et al.

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